John E. Tompkins

Catherine S. Cordoba

Catherine Cordoba worked at the Houdaille Hershey plant in Decatur, Illinois on the night shift of the plating department.

Sara B. Chettkow

Sara B. Chettkow was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Theodore R. Boinski

Theodore Boinski (1920-2008) was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.

R. E. Oliver